Typewriter



l'mwm J. T. FIELD.

TYPEWRITER.

FILED FEB, 11, 1921.

Jan.. 9, 192.32

2 SHEETS-SHEET l.

" S m D n QM V 0 Vmk ...m W rf U T A N H O Vl J WTVESSES lllltitented dan. tl,

.application tiled. February l1, 1921. serial No. Mtle.

To all whom t may concern:

Be it known that lt, Jol-1N T. Freien, a citizen of the United States, and a resident of Focatello, in the county of Bannock and State of ldaho, have invented a. new and llmproved Typewriter, of which the following is a full, clear, and exa-ct description.

My invention relates to atypewriter, and aims to provide certain new and useful improvements, more particularly with regards tothe type-bar and hanger for the saine.

llt is well appreciated, in connection with typewriters, that considerable difficulty has been experiencedincident to the fact that the type-bars of all styles of machines have necessitated a certain amount of adjustment, to compensate for play which comes into being incident to Wear.

llt has been heretofore proposed to provide elements associated with the segment of a typewriter which have served to crowd the bodies of the type hangers, one against the other, to overcome play, but this has not served to compensate for the wear at the points of pivotal connection of the hanger and type-bars. v

Further di'l'liculty has been experienced, in connection with what is known as a double bank7 machine, in that it hasV been necessary to employ two series of hangers, one for each bank, to `provide points of pivotal suspension for the type-bars, then complicating the structure.

Having these defects in mind, ll. have constructed certain improvements in typewrit-v ers, and more particularly with respect to the means and method of suspension of the type-bars, whereby primarily, a medium will be provided permitting anv individual, as well as an aggregate adjustment for these members, permitting of wear to be compensated for. 'j

A further object of my invention is the provision of improvements in typewriters, which will serve to reduce the complication incident to a double bank machine.

Further objects of my invention will appear in the following specification and drawings, which latter present practical embodiments of the same, and' in which" Figure 1 is a partly fragmentary plan view of a typewriter segment and illustrat ing the type hangers and bars associated therewith.

Fig. 2 is an enlarged sectional view taken on the line 2--2, and in the direction of the arrow indicated in Fig. l.

Fig. -3 is an end view of the segment illustrated in Fig. 1.

Fig. l is a bottom perspective view of one of the hangers.

Fig. 5 is a partly sectional plan View of one of the type bars.

Fig. 6 is a side view thereof.

Fig. 7 is a fragmentary, partly sectional face view of a portion of the segment and illustrating the type-bars applied to the hangers associated therewith.

Fig. 8 is a. fragmentary plan view of the segment illustrating my invention as applied to a single bank typewriter.

Fig. 9 is an enlarged sectional plan view taken on the line 9 9, in the direction of the arrow indicated in Fig. 8.

Fig. 10 is a fragmentary view of a portion of the segment and illustrating the improved type of hanger utilized in connection with a double bank machine, the type bars being adapted to be arranged in staggered relationship in this type of machine.

11 is a. fragmentary perspective view of the hangers and segment as illustrated in Fig. 10, and showing one of the hangers removed therefrom to illustrate the underlying construction. j

lrleferring now more particularly to Fig. 1 'it will vbe seen that the reference numeral l5 indicates a segment of a typewriter which mounts type hangers 1G, which are movable `within certain limitations within the body of the segnientl, their movement being limited' by any suitable nieaiis such. as bolts 17.'

llVit-h regard to achieving an aggregate adjustment of these hangers in the manner set forth in the objects of the specifica-tion, a pair of set screws 18 are conveniently utilized, these elements being associated with the ends of the segment 15 and contacting directly with that type hanger next adjacent to the ends of the segment. Also one of the hangers, positioned approximately intermediate the extremities of the segment 15, may be lined as has been indicated by the reference numeral 19, and it will thus be appreciated that an aggregate adjustment of the hangers may be had by tightening one set of screws 18, so as to bear against the outermost hanger 1G, thus jamming these elements toward the center hang er secured as at 19, this expedient obviously prccluding any play on the part ot any of the individual hangers 16. This operation will serve to clamp those hangers between the screws 18 and the fixed hanger li) together, and a further adjustment ot this nature may be secured by adjusting the seeond set of screws 18 thus tightening all of the hangers.

Contrary to the conventional construction, reference being had to Fig. it will be seen that each or' the hangers 1G, preterably includes a body portion presenting a reduced end 20. Shoulders 21 are also provided and the body ot the hanger 1G tapers from these shoulders toward its outer end, thus presenting a wedge shape. Also it will be. noted that the set screws 1S co-operate with the bodies of the' hangers 16 at points to each side of the shoulders 21 and by virtue ot Jthis construction and the Vfactthat the individual hangers contact with the next adjacent hangers adjacent tne shoulder portions only, it will be appreciated that a tightening` of either the outer or inner screws will result in a limited rocking' niotion being etlected by the hangers, thus serving to provide an liinited rocking as well as lateral adjustment for the saine.

1t will also be noted, reference being had to Fig. il, that the outer end of each ot the type hangers 16 terminates inwhat might be conveniently ternied an ear 22, which latter provides a pair of openings 23 preferably arranged one above the other. These openings serve as a bearing ier providing .pivotal connection to the type-bars, and referring to Figs. seen that these type-bars include a body provided with a conventional reentorcing rib 25 and mounting upon the outer end the type 26. The opposite end of the body 2st is preferably formed with a reduced portion and by coupling the plate 27 to this end ofthe body 24- l provide at the rear end of the body ot' the type-bar a. pair ol arri#y 91% spaced one from the other and i Aying a suitable element 29 adapted to cooperate with one of the openings 23, wher to provide a pivotalsuspension means tor the type-bar. Despite the aggregate adjus nent described in the preceding paragraph n connection with the set screws 18, it will be appreciated that it will be impossible to obtain that nicety of adjustment requisite to equally tensioning the stroke of each of the type-bars, and at the l saine time to .prevent any play at their points of pivotal suspension, and with this in. view I conveniently utilize a taper plug 2i/)extending between the arins 28 and cooperating therewith to effect a movement or' these ari/ns one with respect to the other vwhen the plug is projected or retracted.

5 and 6 it will bel Thus the arnis 25%, being inoved thc elements 29 will be n'loved 'Further apart or toward each other7 and it will thus be aj'ijireciated that by this expedient l ain able to individually adjust each ot the type-bars in :i proper nianner, and by virtue ol? the l'nct that a pair ot openings Q23 are associated with each o'i tue cars 22, it will be obvious that a separate series of bearing elements inay be dispensed with.

lieterring` now more particularly to llic construction illustrated in Figs. tl and ll it will be seen that the segment is constructed in the usual manner and serves lo niounttypc hangers alliordingpivotal suspension nicans 'For the typo-bars, which in this latter 'torni are constructed in any desired inanncr.

Referringv niore particularly to there type hangers it will be secu, however. that each ot the saine preferably includes a. pair ot wedge shaped nienibers $32 co-operatinn` iogether to provide a substantially triangular shaped body and a pair oli' ears 33) :irc fixed one to cach ot the wedge shaped niembers :2,2 and provide openings 3ft 'lorniing points oil pivotal connection for the typel` irs, These latter elements niay include in the usual uianuer, as has been illustrated in Fig. S, a outer end and being` 'Formed with a pair o t lugs Si" adapted to extend one into each of the openings Biloli' next adjacent cars l.

To effect the adjustment desired. i. c., individual compensation tor wear ot each ot the type bars. l preferably utilize taper plugs 3S, which extend between the laces ot cti-operating inenibers 2352 and into the body ot the segment 3l, it being obvious that a projection of these plugs will result in a nioveincnt o'l` the ears 33, one with respect to the other.

Thus an individual adjustment will be provided by virtue ot the `lizxct that the bearingopenings 34, (fo-operating to retain the lugs 37 on the single type-bar. may be varied in distance liroin each other, thus serving to tighten or loosen the bearing to achieve the result desired.

Now with a view olE simplifying the construction ot a double bank7 machine, utilizing this principle, it will be noted, reference being had to Fig. 11, that adjacent type hangers have their bodies arranged in staggered relationship with respect to each other and to provide proper co-operating portions with these bodies it will be noted that the bodies of the ineinhers 32 forming the underlying series, have recess portions 39 cut in their upper laces, the upper layer ot the members 32 being liornicd with corresponding recesses t0 whereby a lap joint is provided, insuring a firin interlockingr of each of the type hangers with respect to cach other and the segment is assured upon suitshanl: 35, carrying type 3G at its Cil rather? able screws 451 being applied to the upper layer ct hangers.

llrom the foregoing it will be appreciated that l have constructed certain improvements in connection with a typewriter, in that individual adjustment, as well as aggregate is permitted on the part oi each et the type-bars, aside from the tact that means torsimplitying the construction et a double bank machine are provided.

lt obviously will be appreciated also that numerous moditications of structure may readily be resorted to without `the least departing from the scope ot my claims which are-- l. ln a typewriter, a segment, a plurality ot type hangers arranged transversely ot the segment and side'by side, each oi? said hangers including a body having oppositely located side edges converging toward an end ot the body, between which side edges the body is ot maximum width, each said body also having a terminal ear, a plurality oi type bars pivoted between the ears oit adjoining bodies se that the ear ot" each body is connected to the ear ot the bodies on both sides by a plurality of type bar pivots, and means adjacent an end hanger and cooperating with the same for adjustment to force all the hangers into intimate contact with each. other at the points et maximum width oft the hangers.

2. lin a typewriter, a segment, a plurality of hangers arranged transversely et the segment and side by side and having portions ot maximum width betweenthe ends ot the hangers, retaining means tor the hangers permitting a limited roelring movement ot the various hangers simultaneously,

and adjustable means engaging an end hanger for imparting such a rocking movement to the hangers.

3. ln a typewriter, a segment, a plurality et type hangers arranged transversely of the segment and side by side and carrying projecting ears equipped with holes, a plurality ot type bars each having pivot points on opposite sidcs,`the partsbeing so designed and arranged that the alternate type bars may be pivotally mounted on the hangers on said ears at di'tlterent perpendicu lar differences :from the plane ot the segment with the hangers and interposed type bars iorniing a continuous chain et relatively movable linlrs, and adjustable means acting on one end et such chain for simul taneously rocking all the hangers in planes parallel to the plane et the segment t. ln a typewriter, a segment, a plurality et hangers arranged transversely of the segment and side by side and having portions of maximum width between the ends of the hangers, and an adjusting means engaging an end hanger :tor acting on the line ot" hangers along lines oii'set troni the line oi? maximum width ot the hangers to simultaneously roclr all the hangers about lines perpendicular te the plane oi the segment.

5. in a typewriter, a segment, a plurality et type hangers supported by said segment, certain ot said hangers including a body termed with a reduced end portion, and an ear adjacent the opposite end of said body, said body being tapered and presenting shoulders adjacent its reduced end portion, and type bars adapted to be movably supn port-ed by the ears ot said hangers.

Jill-lli" T. Fllllllhl).

lil-5 

